2troke

Okay so i am getting a bike i have already had experience on a PW80 but ive out grown it quiet abit. I'm 5' 7" and i weigh 120lbs But there is a guy selling a 1990 RM125 for cheap and i want to buy it and another guy is selling a 1989 YZ125. The distance between my feet and my waist is 33inches about 34inches with boots on and im still growing. What do you recommend i get i was thinking of a CRF150/CRF230 but i really dont have any more than $1000 to spend(The RM and YZ are under $1000). Could i get some advice , Thanks.